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We investigate sufficient H\"older continuity conditions on Leray-Hopf (weak) solutions to the in unsteady Navier-Stokes equations in three dimensions guaranteeing energy conservation. Our focus is on the half-space case with homogeneous…

偏微分方程分析 · 数学 2024-08-12 Luigi C. Berselli , Alex Kaltenbach , Michael Ružička

In this paper we consider, by means of a precise spectral analysis, the 3D Navier-Stokes equations endowed with Navier slip-with-friction boundary conditions. We study the problem in a very simple geometric situation as the region between…

偏微分方程分析 · 数学 2025-03-17 Luigi C. Berselli , Alessio Falocchi , Rossano Sannipoli

Variational approaches have been used successfully as a strategy to take advantage from real data measurements. In several applications, this approach gives a means to increase the accuracy of numerical simulations. In the particular case…

最优化与控制 · 数学 2015-10-15 Telma Guerra , Adélia Sequeira , Jorge Tiago

Recently there has been an increasing interest for a better understanding of ultra low Reynolds number flows. In this context we present a new setup which allows to efficiently solve the stationary incompressible Navier-Stokes equations in…

流体动力学 · 物理学 2015-05-13 Vincent Heuveline , Peter Wittwer

We study the so-called damped Navier-Stokes equations in the whole 2D space. The global well-posedness, dissipativity and further regularity of weak solutions of this problem in the uniformly-local spaces are verified based on the further…

偏微分方程分析 · 数学 2015-06-04 Sergey Zelik

We study the immersed boundary problem in 2-D. It models a 1-D elastic closed string immersed and moving in a fluid that fills the entire plane, where the fluid motion is governed by the 2-D incompressible Navier-Stokes equation with a…

偏微分方程分析 · 数学 2025-12-17 Jiajun Tong , Dongyi Wei

H.-O. Bae and H.J. Choe, in a 1997 paper, established a regularity criteria for the incompressible Navier-Stokes equations in the whole space $\R^3$ based on two velocity components. Recently, one of the present authors extended this result…

偏微分方程分析 · 数学 2019-01-10 Hugo Beirao da Veiga , Jiaqi Yang

In this paper, we simplify and extend the results of \cite{GZ} to include the case in which $\Om =\R^3$. Let ${[L^2({\mathbb{R}}^3)]^3}$ be the Hilbert space of square integrable functions on ${\mathbb {R}}^3 $ and let ${\mathbb…

数学物理 · 物理学 2010-09-17 Tepper L. Gill , Woodford W. Zachary

This article focusses on the analysis of a conforming finite element method for the time-dependent incompressible Navier-Stokes equations. For divergence-free approximations, in a semi-discrete formulation, we prove error estimates for the…

数值分析 · 数学 2018-03-20 Philipp W. Schroeder , Gert Lube

We establish the validity of the Euler$+$Prandtl approximation for solutions of the Navier-Stokes equations in the half plane with Dirichlet boundary conditions, in the vanishing viscosity limit, for initial data which are analytic only…

偏微分方程分析 · 数学 2022-04-13 Igor Kukavica , Trinh Nguyen , Vlad Vicol , Fei Wang

In this paper, we study the inviscid limit of the free surface incompressible Navier-Stokes equations with or without surface tension. By delicate estimates, we prove the weak boundary layer of the velocity of the free surface Navier-Stokes…

偏微分方程分析 · 数学 2016-08-26 Fuzhou Wu

The Navier--Stokes equations for incompressible flows past a two--dimensional sphere are considered in this article. The existence of an inertial form of the equations is established. Furthermore for the first time for fluid equations, we…

chao-dyn · 物理学 2008-02-03 Roger Temam , Shouhong Wang

Liouville-type theorems for the steady incompressible Navier-Stokes system are investigated for solutions in a three-dimensional slab with either no-slip boundary conditions or periodic boundary conditions. When the no-slip boundary…

偏微分方程分析 · 数学 2022-08-22 Jeaheang Bang , Changfeng Gui , Yun Wang , Chunjing Xie

In this proceeding we expose a particular case of a recent result obtained by the authors regarding the incompressible Navier-Stokes equations in a smooth bounded and simply connected bounded domain, either in 2D or in 3D, with a Navier…

偏微分方程分析 · 数学 2017-03-22 Jean-Michel Coron , Frédéric Marbach , Franck Sueur

We continue our work reported earlier (A. Muriel and M. Dresden, Physica D 101, 299, 1997) to calculate the time evolution of the one-particle distribution function. An improved operator formalism, heretofore unexplored, is used for uniform…

数学物理 · 物理学 2010-12-01 Amador Muriel

Given an obstacle in $\mathbb{R}^3$ and a non-zero velocity with small amplitude at the infinity, we construct the unique steady Boltzmann solution flowing around such an obstacle with the prescribed velocity as $|x|\to \infty$, which…

数学物理 · 物理学 2022-06-07 Raffaele Esposito , Yan Guo , Rossana Marra

We study the nonhomogeneous boundary value problem for the Navier--Stokes equations of steady motion of a viscous incompressible fluid in a three--dimensional exterior domain with multiply connected boundary. We prove that this problem has…

偏微分方程分析 · 数学 2014-03-28 Mikhail Korobkov , Konstantin Pileckas , Remigio Russo

The problem of global-in-time regularity for the 3D Navier-Stokes equations, i.e., the question of whether a smooth flow can exhibit spontaneous formation of singularities, is a fundamental open problem in mathematical physics. Due to the…

偏微分方程分析 · 数学 2025-02-25 Zoran Grujic , Liaosha Xu

The system of Navier--Stokes--Fourier equations is one of the most celebrated systems of equations in modern science. It describes dynamics of fluids in the limit when gradients of density, velocity and temperature are sufficiently small,…

统计力学 · 物理学 2017-11-03 A. N. Gorban , I. V. Karlin

A recent paper [J. A. Evans, D. Kamensky, Y. Bazilevs, "Variational multiscale modeling with discretely divergence-free subscales", Computers & Mathematics with Applications, 80 (2020) 2517-2537] introduced a novel stabilized finite element…

数值分析 · 数学 2021-12-21 Sajje Lee Calfy , John A. Evans , David Kamensky